Pre chlorination Study guides, Class notes & Summaries
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Water distribution practice exam #2 (D1-D2)Accurate 100%
- Exam (elaborations) • 6 pages • 2024
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Which process converts ammonia to nitrite and nitrate? - ANSWER Nitrification 
 
What is the maximum advisable rate of chlorine gas removal from a 150- pound cylinder? - ANSWER 40 pounds per day 
 
What is a type of positive displacement water meter? - ANSWER Nutating- disk meter 
 
What is a power-operated mechanism for opening and closing a valve? - ANSWER Actuator 
 
What is required if a routine sample test positive for total coliform bacteria? - ANSWER Take repeat samples 
 
Why is a grid l...
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Water distribution practice exam #2 (D1-D2)
- Exam (elaborations) • 6 pages • 2023
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Which process converts ammonia to nitrite and nitrate? - Answer- Nitrification 
 
What is the maximum advisable rate of chlorine gas removal from a 150- pound cylinder? - Answer- 40 pounds per day 
 
What is a type of positive displacement water meter? - Answer- Nutating- disk meter 
 
What is a power-operated mechanism for opening and closing a valve? - Answer- Actuator 
 
What is required if a routine sample test positive for total coliform bacteria? - Answer- Take repeat samples 
 
Why is a g...
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REHS Study Exam– Water.
- Exam (elaborations) • 8 pages • 2024
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REHS Study Exam– Water. 
 
 
Saturated zone - CORRECT ANSWER all pore spaces filled with water 
allows water to travel 
 
Water table - CORRECT ANSWER top of saturated zone 
 
Vadose zone - CORRECT ANSWER part of unsaturated zone 
 
Flowing artesian well - CORRECT ANSWER pressure causes water to rise above ground level 
 
Aquaclude - CORRECT ANSWER Confining layer, rock or clay 
 
Confined aquifer - CORRECT ANSWER groundwater below layer of solid rock or clay 
 
Aquitard - CORRECT ANSWER retar...
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Water distribution practice exam #2 (D1-D2) Questions and Answers 100% Correct
- Exam (elaborations) • 5 pages • 2024
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What is the maximum advisable rate of chlorine gas removal from a 150- pound cylinder? - ANSWER-40 pounds per day 
 
What is a type of positive displacement water meter? - ANSWER-Nutating- disk meter 
 
What is a power-operated mechanism for opening and closing a valve? - ANSWER-Actuator 
 
What is required if a routine sample test positive for total coliform bacteria? - ANSWER-Take repeat samples 
 
Why is a grid layout better than a tree layout for a water distribution system? - ANSWER-Less de...
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REHS Exam – Water Questions and Answers Graded A
- Exam (elaborations) • 13 pages • 2023
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REHS Exam – Water Questions and Answers Graded A Saturated zone all pore spaces filled with water allows water to travel 
Water table top of saturated zone 
Vadose zone part of unsaturated zone 
Flowing artesian well pressure causes water to rise above ground level 
Aquaclude Confining layer, rock or clay 
Confined aquifer groundwater below layer of solid rock or clay 
Aquitard retards flow of water 
2 biggest water users 1. Therm-electric power 2. Irrigation 
Public water system At least 25 p...
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Water distribution practice exam test 1 already passed!!!! And verified
- Exam (elaborations) • 6 pages • 2024
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Water distribution practice exam test 1 
already passed!!!! And verified 
Which process converts ammonia to nitrite and nitrate? - CORRECT ANSWERNitrification 
What is the maximum advisable rate of chlorine gas removal from a 150- pound 
cylinder? - CORRECT ANSWER-40 pounds per day 
What is a type of positive displacement water meter? - CORRECT ANSWER-Nutatingdisk meter 
What is a power-operated mechanism for opening and closing a valve? - CORRECT 
ANSWER-Actuator 
What is required if a rout...
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Texas Class C Wastewater Treatment License Questions And Answers Latest 2024/2025 Graded A+.
- Exam (elaborations) • 16 pages • 2024
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Texas Class C Wastewater Treatment License Questions And Answers Latest 2024/2025 Graded A+. Preliminary Treatment - ANSWER-the 1st stage of sewage treatment where large 
debris, such as sticks, grit, and rags pas through a screen followed by a grit chamber, 
where the flow of water is slowed enough to allow for sedimentation. 
What stage of treatment is grit removal usually accomplished in? - ANSWERpreliminary treatment 
Rotating Biological Contactor - ANSWER-a type of biological secondary trea...
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REHS Waste Water Treatment Exam Questions and Answers 100% Verified
- Exam (elaborations) • 9 pages • 2024
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What are the treatment processes in PRELIMINARY Wastewater Treatment? - Screening 
Comminution 
Grit Removal 
Pre-Aeration 
Flow Metering / Sampling 
What are the treatment processes in PRIMARY Wastewater Treatment? - Sedimentation / 
Flotation 
What are the treatment processes in SECONDARY Wastewater Treatment? - Biological 
Treatment (ie activated sludge, trickling filters, rotating biological contactor (RBC)) 
Sedimentation 
What are the treatment processes in TERTIARY Wastewater Treatment? -...
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Water distribution practice exam #2 (D1-D 2023 with 100% correct answers
- Exam (elaborations) • 8 pages • 2023
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Available in package deal
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Which process converts ammonia to nitrite and nitrate? 
Nitrification 
 
 
 
What is the maximum advisable rate of chlorine gas removal from a 150- pound cylinder? 
40 pounds per day 
 
 
 
What is a type of positive displacement water meter? 
Nutating- disk meter 
 
 
 
What is a power-operated mechanism for opening and closing a valve? 
Actuator 
 
 
 
What is required if a routine sample test positive for total coliform bacteria? 
Take repeat samples 
 
 
 
Why is a grid layout better than a ...
-
REHS Waste Water Treatment Exam Questions and Answers 100% Verified
- Exam (elaborations) • 9 pages • 2023
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- $8.99
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What are the treatment processes in PRELIMINARY Wastewater Treatment? - Screening 
Comminution 
Grit Removal 
Pre-Aeration 
Flow Metering / Sampling 
What are the treatment processes in PRIMARY Wastewater Treatment? - Sedimentation / 
Flotation 
What are the treatment processes in SECONDARY Wastewater Treatment? - Biological 
Treatment (ie activated sludge, trickling filters, rotating biological contactor (RBC)) 
Sedimentation 
What are the treatment processes in TERTIARY Wastewater Treatment? -...
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